Your TH400 is a three speed. Also the only GM automatic trans to be fitted with a bellhousing pattern that matches the AMC engine blocks.
A TH400 is a different animal than the 700r4, 4l60 and 4l60e family.
Those all have OD.
Your friend was incorrect about that Jeep having an OD automatic.
It did have OD when it had the 5speed.
Last edited by Offroadian; August 27th, 2012 at 08:55 AM.